KR930021006A - 디코드된 비디오 신호용 에러 은폐장치 - Google Patents

디코드된 비디오 신호용 에러 은폐장치 Download PDF

Info

Publication number
KR930021006A
KR930021006A KR1019930002950A KR930002950A KR930021006A KR 930021006 A KR930021006 A KR 930021006A KR 1019930002950 A KR1019930002950 A KR 1019930002950A KR 930002950 A KR930002950 A KR 930002950A KR 930021006 A KR930021006 A KR 930021006A
Authority
KR
South Korea
Prior art keywords
block
pixel
error
generating
pixel values
Prior art date
Application number
KR1019930002950A
Other languages
English (en)
Other versions
KR100296660B1 (ko
Inventor
쑨 후이팡
왈터 즈데프스키 죠엘
Original Assignee
에릭 피. 헤르만
알씨에이 톰슨 라이센싱 코오포레이숀
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 에릭 피. 헤르만, 알씨에이 톰슨 라이센싱 코오포레이숀 filed Critical 에릭 피. 헤르만
Publication of KR930021006A publication Critical patent/KR930021006A/ko
Application granted granted Critical
Publication of KR100296660B1 publication Critical patent/KR100296660B1/ko

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/426—Internal components of the client ; Characteristics thereof
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/77—Circuits for processing the brightness signal and the chrominance signal relative to each other, e.g. adjusting the phase of the brightness signal relative to the colour signal, correcting differential gain or differential phase
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
    • H04N19/51—Motion estimation or motion compensation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
    • H04N19/61—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding in combination with predictive coding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/85—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression
    • H04N19/89—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression involving methods or arrangements for detection of transmission errors at the decoder
    • H04N19/895—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression involving methods or arrangements for detection of transmission errors at the decoder in combination with error concealment
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving MPEG packets from an IP network
    • H04N21/4382—Demodulation or channel decoding, e.g. QPSK demodulation

Abstract

이미지 재생산은 사후 처리 적응 에러 은페장치를 포함하는 것에 의해 MPEG와 같은 텔레비전 수상기에서 향상된다. 압축 비디오 신호는 에러를 포함하는 비디오 신호 블록을 결정하기 위해 검사(16)되고, 에러 토큰은 압축해제된 픽셀값의 대응 블록을 식별하기 위해 생성된다. 에러를 포함하는 픽셀값의 압축 해제 블록에 인접한 픽셀값은 그러한 블록 영역 내에서 상대적 이미지 모션 및 이미지 디테일의 추정치를 생성시키기 위해서 검사된다(22, 26) 픽셀값 블록은 이미지 모션의 추정치가 이미지 디테일 추정치 보다 작거나 큰것에 따라서 픽셀값의 일시적으로 치환된 공동 위치 지정된 블록 또는 보간화 데이타로 교체된다.

Description

디코드된 비디오 신호용 에러 은페장치
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제3도는 본 발명의 구체화하는 수신 장치의 블록도.
제4a 및 제4b도는 본 발명을 기술하는데 유용한 이미지 데이타 매크로블록및 이미지 데이타 블록 각각의 개략도.
제5도는 본 발명을 구체화하는 비디오 신호 압.축해제(decompression) 및 사후 압축해제(post-decompression) 에러 은폐 장치(errorconcealment apparatus)의 블록도.

Claims (6)

  1. 픽셀 블록으로서 디코드되는 비디오 신호내의 에러를 은폐하기 위한 적용 에러 은폐장치에 있어서, 다수의 픽셀로 표시되는 각 이미지 영역을 표시하는 코드화 데이타 블록내에서 발생하는 비디오 신호의 소스(10), 코드화 데이타의 상기 블록내의 에러를 검출하고, 에러를 포함하는 코드화 데이타 블록을 지시하는 에러 토큰을 생성시키고, 에러를 갖는 코드화 데이타 블록을 폐기시키며, 코드화 데이타의 무에러 블럭을 넘겨주기 위해 상기 소스에 결합되는 수단(16), 코드화 데이타의 상기 무에러 블록을 한 블록씩을 기초로 하여 디코딩 하고, 상기 이미지영역을 표시하는 픽셀값의 대응 블록을 생성시키기 위한 수단(20), 픽셀값의 상기 에러 발생 블록을 위한 픽셀값을 적당하게 제공하기 위해, 코드화 비디오 신호의 폐기된 블록에 대응하는 픽셀값 블록(지정된 에러 발생 블록)에 인접한 픽셀값 블록내의 픽셀값 및 상기 에서 토큰에 응답하는 수단(26)을 포함하는 것을 특징으로 하는 장치.
  2. 제1항에 있어서, 픽셀값을 적합하게 제공하기 위한 상기 수단은 픽셀값의 상기 에러 발생 블록에 인접한 픽셀값의 최소1블록내의 이미지 디테일의 양과 관계되는 제1표시를 생성시키기 위한 수단, 앞서 디코드된 프레임내의 이미지에 관하여, 픽셀값의 상기 에러 발생 블록에 인접한 픽셀값의 상기 최소1블록내의 이미지 변화와 관계되는 제1표시를 생성시키기 위한 수단, 상기 제1및 제2표시를 비교하고, 만약 이미지 디테일 양이 상기 이미지변화 보다 각각 크거나 작으면, 픽셀값의 상기 에러 발생 블록을 위해 픽셀 데이타의 제1및 제2형을 제공하기 위한 수단을 포함하는 것을 특징으로 하는 장치.
  3. 제2항에 있어서, 픽셀 데이타의 제1및 제2형을 제공하기 위한 상기 수단은 픽셀값의 상기 에러 발생 블록에 인접한 픽셀값 블록으로부터 픽셀값을 선택하고, 거기서 부터 픽셀 데이타의 상기 제2형에 대응하는 1블록의 보간화 픽셀값을 생성하기 위한 수단, 앞서 디코드된 비디오 신호의 1프레임으로 부터 픽셀 데이타의 상기 제1형에 대응하는 1블록의 픽셀값을 선택하기 위한 수단을 포함하는 것을 특징으로 하는 장치.
  4. 제2항에 있어서, 픽셀 데이타의 제1및 제2형은 일시적으로 치환되는 픽셀값 블록과 보간화 픽셀값 블록에 각각 대응하는 것을 특징으로 하는 장치.
  5. 제2항에 있어서, 제1표시를 생성시키기 위한 상기 수단은, 상기 최소1블록내의 픽셀값의 평균값 제곱과 상기 최소 1블록내의 제곱 픽셀값의 기대값 사이의 차를 계산하기 위한 수단을 포함하는 것을 특징으로 하는 장치.
  6. 제2항에 있어서, 제2표시를 생성시키기 위한 상기 수단은, 상기 최소1블록내의 대응 픽셀값과 일시적으로 치환된 프레임내의 공동위치지정된 블록으로부터의 픽셀값 사이의 차의 제곱의 기대값을 계산하기 위한 수단을 포함하는 것을 특징으로 하는 장치.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019930002950A 1992-03-02 1993-03-02 디코딩비디오신호용에러은페장치 KR100296660B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/844,322 US5247363A (en) 1992-03-02 1992-03-02 Error concealment apparatus for hdtv receivers
US844,322 1992-03-02

Publications (2)

Publication Number Publication Date
KR930021006A true KR930021006A (ko) 1993-10-20
KR100296660B1 KR100296660B1 (ko) 2001-10-24

Family

ID=25292386

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019930002950A KR100296660B1 (ko) 1992-03-02 1993-03-02 디코딩비디오신호용에러은페장치

Country Status (4)

Country Link
US (1) US5247363A (ko)
JP (1) JP3404706B2 (ko)
KR (1) KR100296660B1 (ko)
DE (1) DE4305578B4 (ko)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101382101B1 (ko) * 2006-08-25 2014-04-07 톰슨 라이센싱 감소된 해상도의 파티셔닝을 위한 방법 및 장치

Families Citing this family (119)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5337088A (en) * 1991-04-18 1994-08-09 Matsushita Electric Industrial Co. Ltd. Method of correcting an image signal decoded in block units
US5657399A (en) * 1991-05-17 1997-08-12 Canon Kabushiki Kaisha Encoding/decoding apparatus using quantizing steps information
JP3002019B2 (ja) * 1991-07-04 2000-01-24 富士通株式会社 セル廃棄補償機能を有する画像符号化伝送方式
US10361802B1 (en) 1999-02-01 2019-07-23 Blanding Hovenweep, Llc Adaptive pattern recognition based control system and method
US8352400B2 (en) 1991-12-23 2013-01-08 Hoffberg Steven M Adaptive pattern recognition based controller apparatus and method and human-factored interface therefore
GB2263373B (en) * 1992-01-09 1995-05-24 Sony Broadcast & Communication Data error concealment
JPH05244468A (ja) * 1992-02-28 1993-09-21 Mitsubishi Electric Corp 画像受信装置
KR950004129B1 (ko) * 1992-05-19 1995-04-25 주식회사금성사 가변장 부호 복호기
US5784631A (en) * 1992-06-30 1998-07-21 Discovision Associates Huffman decoder
JPH0698313A (ja) * 1992-09-14 1994-04-08 Sony Corp 動画像復号化装置
US5446501A (en) * 1992-10-22 1995-08-29 Accom, Incorporated Three-dimensional median and recursive filtering apparatus and method for video image enhancement
JP3341781B2 (ja) * 1992-12-15 2002-11-05 ソニー株式会社 画像復号化装置および画像符号化装置
DE69323855T2 (de) * 1992-12-24 1999-09-16 Canon Kk Vorrichtung für die Wiedergabe eines Bildsignals
JP3240017B2 (ja) * 1993-01-11 2001-12-17 ソニー株式会社 Ｍｐｅｇ信号記録方法およびｍｐｅｇ信号再生方法
US5786858A (en) * 1993-01-19 1998-07-28 Sony Corporation Method of encoding image signal, apparatus for encoding image signal, method of decoding image signal, apparatus for decoding image signal, and image signal recording medium
US5815636A (en) * 1993-03-29 1998-09-29 Canon Kabushiki Kaisha Image reproducing apparatus
US5561532A (en) * 1993-03-31 1996-10-01 Canon Kabushiki Kaisha Image reproducing apparatus
US6266372B1 (en) * 1993-03-31 2001-07-24 Canon Kabushiki Kaisha Apparatus for image reproduction using motion estimation
US5943444A (en) * 1993-03-31 1999-08-24 Canon Kabushiki Kaisha Image reproducing apparatus
US5442400A (en) * 1993-04-29 1995-08-15 Rca Thomson Licensing Corporation Error concealment apparatus for MPEG-like video data
DE69417471T2 (de) * 1993-05-12 1999-11-25 Matsushita Electric Ind Co Ltd Gerät zur Aufzeichnung und Wiedergabe von Videosignalen
US5812735A (en) * 1993-07-09 1998-09-22 Sony Corporaiton Picture signal decoding method and picture signal decoding apparatus
US5598514A (en) * 1993-08-09 1997-01-28 C-Cube Microsystems Structure and method for a multistandard video encoder/decoder
DE69524269T2 (de) * 1994-01-28 2002-07-18 Matsushita Electric Ind Co Ltd Vorrichtung und Verfahren zur Dekodierung von Kodes variabler Länge
US5442407A (en) * 1994-03-22 1995-08-15 Matsushita Electric Corporation Of America Video signal noise reduction system using time-varying filter coefficients
US5475688A (en) * 1994-04-22 1995-12-12 Thomson Consumer Electronics, Inc. Media error code generation as for a video inverse transport processor
US5619501A (en) * 1994-04-22 1997-04-08 Thomson Consumer Electronics, Inc. Conditional access filter as for a packet video signal inverse transport system
US5880786A (en) * 1994-06-15 1999-03-09 Hitachi, Ltd. Apparatus for picture decoding having frame memories commonly connected to one data bus and one address bus
JPH0818979A (ja) * 1994-06-27 1996-01-19 Canon Inc 画像処理装置
US6009236A (en) * 1994-09-26 1999-12-28 Mitsubishi Denki Kabushiki Kaisha Digital video signal record and playback device and method for giving priority to a center of an I frame
US5550847A (en) * 1994-10-11 1996-08-27 Motorola, Inc. Device and method of signal loss recovery for realtime and/or interactive communications
US5734419A (en) 1994-10-21 1998-03-31 Lucent Technologies Inc. Method of encoder control
CA2157066C (en) 1994-10-21 1999-09-21 Nelson Botsford Iii Method for controlling a compressed data buffer
KR100320450B1 (ko) * 1994-12-16 2002-06-20 구자홍 고선명티브이수상기의수신기동작상황검출장치
US5646687A (en) * 1994-12-29 1997-07-08 Lucent Technologies Inc. Temporally-pipelined predictive encoder/decoder circuit and method
KR100215428B1 (ko) * 1995-01-23 1999-08-16 윤종용 B픽처의에러은폐방법
US5621467A (en) * 1995-02-16 1997-04-15 Thomson Multimedia S.A. Temporal-spatial error concealment apparatus and method for video signal processors
JP3540855B2 (ja) * 1995-03-08 2004-07-07 シャープ株式会社 ブロック歪み補正器
US5809173A (en) * 1995-04-18 1998-09-15 Advanced Micro Devices, Inc. Method and apparatus for improved video decompression using previous frame DCT coefficients
US5903313A (en) * 1995-04-18 1999-05-11 Advanced Micro Devices, Inc. Method and apparatus for adaptively performing motion compensation in a video processing apparatus
US5774600A (en) * 1995-04-18 1998-06-30 Advanced Micro Devices, Inc. Method of pixel averaging in a video processing apparatus
US6002801A (en) * 1995-04-18 1999-12-14 Advanced Micro Devices, Inc. Method and apparatus for improved video decompression by selection of IDCT method based on image characteristics
US5864637A (en) * 1995-04-18 1999-01-26 Advanced Micro Devices, Inc. Method and apparatus for improved video decompression by selective reduction of spatial resolution
US5724446A (en) * 1995-04-18 1998-03-03 Advanced Micro Devices, Inc. Video decoder apparatus using non-reference frame as an additional prediction source and method therefor
US5610659A (en) * 1995-05-08 1997-03-11 Futuretel, Inc. MPEG encoder that concurrently determines video data encoding format and rate control
US5680482A (en) * 1995-05-17 1997-10-21 Advanced Micro Devices, Inc. Method and apparatus for improved video decompression by adaptive selection of video input buffer parameters
DE69623859T2 (de) * 1995-06-05 2003-08-07 Sony Electronics Inc Aufnahme und Wiedergabe von digitalen Signalen
US5731850A (en) * 1995-06-07 1998-03-24 Maturi; Gregory V. Hybrid hierarchial/full-search MPEG encoder motion estimation
FR2735321B1 (fr) * 1995-06-09 1997-09-05 Sgs Thomson Microelectronics Procede et dispositif de masquage d'erreur lors du decodage d'un flux de donnees
US5751861A (en) * 1995-06-30 1998-05-12 Intel Corporation Reducing residual artifacts in video coding schemes with integer motion compensation
US5910909A (en) * 1995-08-28 1999-06-08 C-Cube Microsystems, Inc. Non-linear digital filters for interlaced video signals and method thereof
US5724369A (en) * 1995-10-26 1998-03-03 Motorola Inc. Method and device for concealment and containment of errors in a macroblock-based video codec
JPH09128529A (ja) * 1995-10-30 1997-05-16 Sony Corp ディジタル画像の雑音の投影に基づく除去方法
US5703877A (en) * 1995-11-22 1997-12-30 General Instrument Corporation Of Delaware Acquisition and error recovery of audio data carried in a packetized data stream
JP3994445B2 (ja) * 1995-12-05 2007-10-17 ソニー株式会社 動きベクトル検出装置及び動きベクトル検出方法
KR19990072122A (ko) * 1995-12-12 1999-09-27 바자니 크레이그 에스 실시간 영상 전송 방법 및 장치
KR100197366B1 (ko) * 1995-12-23 1999-06-15 전주범 영상 에러 복구 장치
KR100197368B1 (ko) * 1995-12-23 1999-06-15 전주범 영상 에러 복구 장치
KR100220678B1 (ko) * 1995-12-29 1999-09-15 전주범 블록 단위 부호화 장치로부터 전송된 영상신호에서의 채널 에러 정정 방법
US5781564A (en) * 1996-06-05 1998-07-14 Thomson Consumer Electronics, Inc. Method and apparatus for detecting and concealing data errors in stored digital data
KR100244745B1 (ko) * 1996-06-29 2000-02-15 김영환 싱크 워드 검출회로
TW357327B (en) * 1996-08-02 1999-05-01 Sony Corp Methods, apparatus and program storage device for removing scratch or wire noise, and recording media therefor
CN101005624B (zh) * 1997-02-13 2011-11-16 三菱电机株式会社 动态图象译码装置和方法
US6078616A (en) * 1997-03-13 2000-06-20 Sony Corporation Methods and apparatus for error concealment utilizing temporal domain motion vector estimation
US6584226B1 (en) * 1997-03-14 2003-06-24 Microsoft Corporation Method and apparatus for implementing motion estimation in video compression
JP3217987B2 (ja) * 1997-03-31 2001-10-15 松下電器産業株式会社 動画像信号の復号方法および符号化方法
DE19716147A1 (de) 1997-04-17 1998-10-22 Alsthom Cge Alcatel Verfahren und Vorrichtung zur Fehlerverdeckung in digitalen Übertragungssystemen
US5990955A (en) * 1997-10-03 1999-11-23 Innovacom Inc. Dual encoding/compression method and system for picture quality/data density enhancement
US6563549B1 (en) * 1998-04-03 2003-05-13 Sarnoff Corporation Method and apparatus for adaptively encoding an information stream
KR100309695B1 (ko) * 1998-06-01 2001-12-28 구자홍 간헐영상의압축기록방법및압축간헐영상의재생방법
US6330366B1 (en) * 1998-12-21 2001-12-11 Intel Corporation Method and apparatus for buffer management in video processing
US6771827B1 (en) 1998-12-23 2004-08-03 Xerox Corporation System and method for directed acuity segmentation resolution compression and decompression
KR100587280B1 (ko) * 1999-01-12 2006-06-08 엘지전자 주식회사 오류 은폐방법
US7966078B2 (en) 1999-02-01 2011-06-21 Steven Hoffberg Network media appliance system and method
US6519369B1 (en) 1999-02-12 2003-02-11 Sony Corporation Method and apparatus for filter tap expansion
US6307979B1 (en) 1999-02-12 2001-10-23 Sony Corporation Classified adaptive error recovery method and apparatus
US6363118B1 (en) 1999-02-12 2002-03-26 Sony Corporation Apparatus and method for the recovery of compression constants in the encoded domain
US6621936B1 (en) 1999-02-12 2003-09-16 Sony Corporation Method and apparatus for spatial class reduction
US6418548B1 (en) 1999-02-12 2002-07-09 Sony Corporation Method and apparatus for preprocessing for peripheral erroneous data
US6549672B1 (en) * 1999-06-29 2003-04-15 Sony Corporation Method and apparatus for recovery of encoded data using central value
JP2001016623A (ja) 1999-06-30 2001-01-19 Agilent Technologies Japan Ltd 撮像素子の試験方法
JP3630590B2 (ja) * 1999-08-25 2005-03-16 沖電気工業株式会社 復号化装置及び伝送システム
US6522785B1 (en) 1999-09-24 2003-02-18 Sony Corporation Classified adaptive error recovery method and apparatus
US6351494B1 (en) 1999-09-24 2002-02-26 Sony Corporation Classified adaptive error recovery method and apparatus
US6539517B1 (en) 1999-11-09 2003-03-25 Sony Corporation Data transformation for explicit transmission of control information
GB9928022D0 (en) * 1999-11-26 2000-01-26 British Telecomm Video coding and decording
JP3526019B2 (ja) * 1999-11-30 2004-05-10 インターナショナル・ビジネス・マシーンズ・コーポレーション 画像表示システム、画像表示装置、および画像表示方法
US6754371B1 (en) 1999-12-07 2004-06-22 Sony Corporation Method and apparatus for past and future motion classification
FI107680B (fi) * 1999-12-22 2001-09-14 Nokia Oyj Menetelmä videokuvien lähettämiseksi, tiedonsiirtojärjestelmä, lähettävä videopäätelaite ja vastaanottava videopäätelaite
US6859456B1 (en) * 2000-03-13 2005-02-22 Motorola, Inc. Method and apparatus for checking communicated data
US6970510B1 (en) * 2000-04-25 2005-11-29 Wee Susie J Method for downstream editing of compressed video
US6973130B1 (en) 2000-04-25 2005-12-06 Wee Susie J Compressed video signal including information for independently coded regions
US20020066101A1 (en) * 2000-11-27 2002-05-30 Gordon Donald F. Method and apparatus for delivering and displaying information for a multi-layer user interface
US7039117B2 (en) * 2001-08-16 2006-05-02 Sony Corporation Error concealment of video data using texture data recovery
US20030081564A1 (en) * 2001-10-29 2003-05-01 Chan James C. K. Wireless transmission and recording of images from a video surveillance camera
US8780970B2 (en) * 2001-12-21 2014-07-15 Polycom, Inc. Motion wake identification and control mechanism
EP1504601B1 (en) * 2002-04-17 2011-07-13 Thomson Licensing Packet error signal generator
JP2003348594A (ja) * 2002-05-27 2003-12-05 Sony Corp 画像復号装置及び方法
US7020200B2 (en) * 2002-08-13 2006-03-28 Lsi Logic Corporation System and method for direct motion vector prediction in bi-predictive video frames and fields
US7813429B2 (en) * 2002-08-13 2010-10-12 Lsi Corporation System and method for segmentation of macroblocks
US8488665B2 (en) * 2003-06-25 2013-07-16 Broadcom Corporation Delta frame buffers
US20050013496A1 (en) * 2003-07-16 2005-01-20 Bruls Wilhelmus Hendrikus Alfonsus Video decoder locally uses motion-compensated interpolation to reconstruct macro-block skipped by encoder
KR100585733B1 (ko) * 2003-10-16 2006-06-07 엘지전자 주식회사 영상 처리 시스템의 손실 블록 특성 자동 판단 방법 및 장치
KR100621005B1 (ko) * 2003-12-24 2006-09-08 엘지전자 주식회사 영상 오류 복구장치 및 방법
JP2005260606A (ja) * 2004-03-11 2005-09-22 Fujitsu Ten Ltd デジタル放送受信装置
KR101000926B1 (ko) * 2004-03-11 2010-12-13 삼성전자주식회사 영상의 불연속성을 제거하기 위한 필터 및 필터링 방법
US7983835B2 (en) 2004-11-03 2011-07-19 Lagassey Paul J Modular intelligent transportation system
US20060062312A1 (en) * 2004-09-22 2006-03-23 Yen-Chi Lee Video demultiplexer and decoder with efficient data recovery
US8139647B2 (en) * 2004-10-29 2012-03-20 Sharp Kabushiki Kaisha Moving image decoding apparatus and moving image decoding method
EP1827023A1 (en) * 2006-02-27 2007-08-29 THOMSON Licensing Method and apparatus for packet loss detection and virtual packet generation at SVC decoders
FR2898459B1 (fr) * 2006-03-08 2008-09-05 Canon Kk Procede et dispositif de reception d'images ayant subi des pertes en cours de transmission
CN100548051C (zh) * 2006-05-25 2009-10-07 联想(北京)有限公司 视频编解码设备和方法以及系统
ITTO20060668A1 (it) * 2006-09-19 2008-03-20 Rai Radiotelevisione Italiana Spa Metodo per riprodurre una sequenza audio e/o video, dispositivo di riproduzione ed apparecchio riproduttore che lo utilizzano
US8379733B2 (en) 2006-09-26 2013-02-19 Qualcomm Incorporated Efficient video packetization methods for packet-switched video telephony applications
JP4875451B2 (ja) * 2006-10-17 2012-02-15 パナソニック株式会社 ディジタルデータ受信装置
US8724708B2 (en) * 2007-04-27 2014-05-13 Panasonic Corporation Image decoding device, image decoding system, image decoding method, and integrated circuit
US9357233B2 (en) 2008-02-26 2016-05-31 Qualcomm Incorporated Video decoder error handling
EP2150060A1 (en) * 2008-07-28 2010-02-03 Alcatel, Lucent Method and arrangement for video encoding
US8837908B2 (en) * 2009-01-06 2014-09-16 Cyberlink Corp. Systems and methods for performing secure playback of media content

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4021852A (en) * 1975-08-21 1977-05-03 Rca Corporation Signal defect compensation
US4232340A (en) * 1979-06-01 1980-11-04 Rca Corporation Defect compensation for color television
AU587297B2 (en) * 1985-10-02 1989-08-10 Deutsche Thomson-Brandt Gmbh Correction of transmission errors
US4792953A (en) * 1986-03-28 1988-12-20 Ampex Corporation Digital signal error concealment
DE3804175A1 (de) * 1988-02-11 1989-08-24 Broadcast Television Syst Verfahren und schaltungsanordnung zum einschreiben und auslesen eines digitalen halbleiterspeichers fuer videosignale
JPH0498987A (ja) * 1990-08-16 1992-03-31 Matsushita Electric Ind Co Ltd 誤り修整方法
US5122875A (en) * 1991-02-27 1992-06-16 General Electric Company An HDTV compression system
US5400076A (en) * 1991-11-30 1995-03-21 Sony Corporation Compressed motion picture signal expander with error concealment

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101382101B1 (ko) * 2006-08-25 2014-04-07 톰슨 라이센싱 감소된 해상도의 파티셔닝을 위한 방법 및 장치

Also Published As

Publication number Publication date
DE4305578A1 (ko) 1993-09-09
JPH0670306A (ja) 1994-03-11
JP3404706B2 (ja) 2003-05-12
US5247363A (en) 1993-09-21
DE4305578B4 (de) 2007-06-21
KR100296660B1 (ko) 2001-10-24

Similar Documents

Publication Publication Date Title
KR930021006A (ko) 디코드된 비디오 신호용 에러 은폐장치
US7486734B2 (en) Decoding and coding method of moving image signal, and decoding and coding apparatus of moving image signal using the same
US5146325A (en) Video signal decompression apparatus for independently compressed even and odd field data
JP4724459B2 (ja) 適応時間予測を用いた動きベクトル検出
US20150117553A1 (en) Block Error Compensating Apparatus of Image Frame and Method Thereof
US20060291563A1 (en) Interpolation apparatus and method for motion vector compensation
US20030086622A1 (en) Efficient spatial scalable compression schemes
US20030123738A1 (en) Global motion compensation for video pictures
US6489996B1 (en) Moving-picture decoding method and apparatus calculating motion vectors to reduce distortion caused by error propagation
US20060133475A1 (en) Video coding
EP0838955A3 (en) Video coding apparatus and decoding apparatus
KR910019454A (ko) 디지탈비디오의 연속적인 블럭들을 적응적으로 압축시키기 위한 방법 및 그 장치
KR900019506A (ko) 동 (動) 화상 신호부호화장치 및 복호화장치
KR960028555A (ko) 동화상 부호화 방법 및 동화상 복호화 방법
WO1999063747A2 (en) System for detecting redundant images in a video sequence
US5787207A (en) Method and apparatus for minimizing blockiness in reconstructed images
KR100607390B1 (ko) 이미지 전체 모션 벡터를 이용하여 디지털화된 이미지를코딩하기 위한 방법 및 장치
JP2924691B2 (ja) 量子化ノイズの低減方法及び画像データの復号化装置
JP2900810B2 (ja) 変換符号化された画像データの復号化時に生じる量子化ノイズの低減方法及び変換符号化された画像データの復号化装置
JPH06233266A (ja) 映像符号化装置および映像復号化装置
KR100213287B1 (ko) 영상복호기의 에러보상장치
JP2574572B2 (ja) 画像符号化方法及び画像符号化装置
KR930006522B1 (ko) 영상신호의 대역압축 부호화장치
JP2917782B2 (ja) 画像ブロック符号化装置
JPH0818975A (ja) 動画像の符号化・復号装置

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
G170 Publication of correction
FPAY Annual fee payment

Payment date: 20100512

Year of fee payment: 10

LAPS Lapse due to unpaid annual fee